Automatically-operated gate.



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, e MQELROY. AUTOMATICALLY OPERATED GATE. APPLIUATION EILED SEPT. 17. 1902.

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PATENTED JUNE 9, 1903.

G. MQELROY. AUTOMATICALLY OPERATED GATE.

APPLIOATION IILB D SEPT. 17. 1902.

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IIPATENTED JUNE 9, 1903,

G MQBLROY AUTOMATICALLY OPERATED GATE.

APPLIUALTIOH FILED SEPT. 1'! 19 02.

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Patented June 9, 1903.

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AUTOMATICALLY-OPERATED GATE.

SPECIFICATION forming part of Letters Fatent No. 730,290, dated June 9, 1903. Application filed atts. 1902. Serial in". 133,777. (No model.)

T0 ctll iuhont it 777/602] concern: Be it known that I, GEORGE MGELROY, a citizen of the United States, residing at Plain City, in the county of Weber and State. of Utah, have invented certain new and useful ence marked thereon, which a form a part of this specification.

This invention relates to auto matically-operated gates of the class which swingdown to a horizontal position; and it consists in various details of construction and combinations of parts, as will be hereinafter more fully appended claims.

ters of reference marked thereomforma part in the several views, inlWhich- Figure 1 is aperspective view of my improved gate. Fig; 2 is a view showing the gate thrown down into a horizontal position. Fig. 3 is a detail View of the tension-regulating device in connection with the spring, which is provided to assist in throwing the gate int-0 a vertical position. Fig. 4: is a detail view of the latch mechanism. Fig. 5 is a sectional detail viewof the rock-shaftandconnections; Fig. 6 is a detailiviewlin sec tion through the shaft on which the gate'iSi in the ground, and B designates a platform which has mounted upon its upper surface ascries of strips 0 of metal which are spaced apart. The gate is made up of longitudinal metallic strips (1, which are preferably of a wid th equal to the width of said strips 0 and are into a horizontal position said strips will onter the spaces between the strips 0, and the described and then specifically defined in the J of this application, and in which drawings similar letters of reference indicate like parts 1 opposite sides of the gate-stile for the purso placed that when the gates are turned down uppersurfaces of said strips D, when the latter are .in a horizontal position, will provide spaced bars to givea foothold for a horse and 'form a metallic surface over which the wheels of a vehicle can pass. The ends of said strips D are fastened to the stiles D, which latter are apertured at their lower ends and are journaled on the trunnions F, saidtrunnions beingfastened to the posts, as illustrated.

Projecting from the plate F, which holds the trunnion, is a flange f, the edge of which is formed into teeth f, and F designates a spring, one end of which engages in a hook D on the outer face of the stile against the gate, and after being coiled about said trunnion its other end is bent to form a loop, serving as a handle and is adapted to be held in one or the other of said teeth f, whereby the tension of said spring may be regulated.

and are provided with sockets G adapted to receive trunnions F. Said sprocket-wheelhas two lugs g integral therewith and diametricallydisposed with relation to each other on one'face of said sprocket-wheel to engage the pose of throwing the gate down to a horizontal position or raising the same to a vertical or. closed position Mounted on the inner face of each post A is a'latch I. The up turned edge of said latch is inclined, as illustrated, and a pivoted deg K, which is mounted on a pivot K, carried by a bracket-arm fastened to the stile D, is adapted to ride up said incline and drop by gravity behind the Qvertical edgeof the catch Ito hold the same locked. v through which the end of the pivoted deg K A gfuideK isfastened 'to the stiles,

adapted to engage similar teeth carried by, adjustable collars O, which cooperate with the edges of the hubs of the sprocket-wheel G designates sprocket-wheels which are secured to a shaft G in any desired manner to adjust the sprocket-wheel with relation to the shaft on which it is mounted to determine the proper throw thereof in each direction. A chain passes about said sprocketwheel 0, and similar short chain 0 also passes about one of said sprocket-wheels G, which is mounted upon the shaft G. These chains are connected together at their ends by rods 0 provided with turnbuckles O to take up the slack of the several parts. Projecting from said shaft M are the tread-arms M, there being two of these members fastened to each shaft M and projecting from the latter at substantially right angles to each other, one of said treads being provided for the purpose of throwing the gate down when a vehicle approaches from one direction, while the second one serves to close the gate when a vehicle comes in the opposite direction.

While I have described but one rock-shaft and its connected mechanism connected, it will be understood that both ends of the gate are equipped with similar devices for releasing the gate, and on the opposite side of the gate is a similarly-mounted rock-shaft with connections with the gate, whereby a vehicle coming from either direction may open and close the gate.

' In order to limit the upward throw of the gate, bracket-arms R maybe fastened to the inner face of the posts and have projecting portions, as illustrated.

From the foregoing description, in connection with the drawings, it will be observed that a gate constructed in accordance with my invention will be durable, being made of metal, may be thrown down into a horizontal position and receive the pressure of a heavilyloaded wagon by reason of the face of the gate being flush with the metallic strips on the platform and being simple in construction and substantially built will make a suitable gate for various driveways. It will also be understood that While I have described the construction illustrated I may make various alterations in the details of construction of the invention without departing from the spirit of the invention.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1. An automatically-operated gate comprising posts having trunnions secured thereto, a shaft mounted on said trunnions, a gate having stiles journaled on said trunnions, a pivoted dog carried by the gate and a catch on the gate-post, a rock-shaft and means for operating the same, connections between said rock-shaft and the shaft mounted on said trunnions, where-by as the rock-shaft turns, said dog is released from the catch and the gate turned down into a horizontal position, as set forth.

stiles journaled on said trunnions, a dog pivm ta oted to the gate, a rod connecting said dog with the shaft, a catch on the gate adapted to be engaged by said dog, a rock-shaft, tread members secured thereon, sprocket-chain, rod and wheel connections between said shafts, said shaft mounted on the trunnions adapted to rock slightly to tilt the dog before the gate is turned to a horizontal position, and means for turning the gate down to a horizontal position, as said shaft rocks, as set forth.

3. An automatically-operated gate comprising posts, trunnions carried thereby, a shaft journaled on said trunnions, a gate having stiles journaled on said trunnions, a sprocketwheel having projections adapted to engage with the opposite faces of said stile as the shaft is rocked, a catch mounted on the post, a dog pivoted to the gate and adapted to engage said catch,a rod connecting said sprocketwheel with the dog, a rock-shaft and tread members connected thereto and sprocket wheel and chain connections between the same and said shaft mounted on the trunnions, as set forth.

4. An automatically-operated gate comprising the posts, trunnions secured thereto, and a shaft having one end journaled on one of said trunnions, a sprocket-wheel keyed to the other end of said shaft, and journaled on one of said trunnions, oppositely-disposed projections on the face of said sprocketwheel, stiles journaled on the trunnions, a pivoted dog, a rod connecting the same with said sprocket-wheel, springs secured to the trunnions and engaging said stiles, a rockshaft, tread members secured thereto, a sprocket-wheel, and chain and rod connections between said shafts, as set forth.

5. The combination with the posts, trunnions secured thereto, a shaft having socket ends j ournaled on said trunnions, a sprocketwheel fastened to said shaft and having projections on one face thereof at locations diametrically opposite, agate having stiles journaled on said trunnions, a pivoted dog mounted on the gate, rod connections between the same and said sprocket-wheel, a catch on the gate-post adapted to be engaged by said dog, a spring, one end of which is adjustably held in a toothed flange on the trunnion-carrying plate, a hook mounted on the stile in which the other end of said spring engages, arock-shaft, a tread mounted thereon, a sprocket-wheel on said rock-shaft, and chain and rod connections between the sprocket-wheels on said shaft, as set forth.

6. In combination with the posts, the trunnions fastened thereto, the flanged plate on each trunnion having n-otchedteeth, springs, one end of which is adjus'tably held in said notches, a shaft having hollow socket porl tions journaled on said trunnions, a sprocketwh'eel mounted on said shaft and having projections on one face thereof, a gate, stiles on the gate journaled on said trunnions, and adapted to engage said projections in their movement, a catch carried by the gate-post and a dog pivotally mounted on the gate and adapted to engage said catch; rod connections between said sprocket-Wheel and dog, a platform having metallic strips, spaced apart, the spaces between the strips being adapted to receive the longitudinal metallic strips of the gate as the latter is thrown into a horizontal position, a rock-shaft, treads mounted thereon, sprocket-wheels carried by said rockshaft, and chain connections between the sprocket-Wheels on said shafts, as set forth.

7. In combination with the gate-posts, the trunnions secured thereto, the gate having stiles journaledon said trunnions, springs carried by the trunnions and adapted to bear against the gate, catches on the gate-post with pivoted dogs carried by the gate and adapted to engage said catches, a shaft jour naled on said trunnions, sprocket-wheels held to said shaft, rods connecting, the same with said dogs, means for turning the gate as said shaft rocks, a rock-shaft, having tread mem bers thereon, m sprocket-wheels journaled on said rock-shaft and having hub portions GEORGE McELRoY.

Witnesses:

ELI LUND, A. C. MAW. 

